1. Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, New York
2. Rollins School of Public Health, Emory University, Atlanta, Georgia
3. US Centers for Disease Control and Prevention, Atlanta, Georgia
4. University of KwaZulu-Natal, Durban, South Africa
5. National Health Laboratory Services, Durban, South Africa
6. University of Rochester, New York
7. King Dinuzulu Hospital, Durban
8. South African Medical Research Council, Durban
9. Murchison Hospital, Port Shepstone
10. Greytown Hospital, South Africa
11. Emory School of Medicine, Emory University, Atlanta, Georgia